Finding the Fourth Proportional to 312,364.49, 468,546.74 and 75,707.17
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Solution
The fourth proportional to 312,364.49, 468,546.74 and 75,707.17 is: 113,560.75
Step by Step Solution
- Step 1: Write the proportion equation
312,364.49 : 468,546.74 = 75,707.17 : x - Step 2: Convert to fraction form
312,364.49/468,546.74 = 75,707.17/x - Step 3: Cross multiply
312,364.49x = 468,546.74 × 75,707.17 - Step 4: Simplify right side
312,364.49x = 35,472,346,148.22 - Step 5: Solve for x
x = 35,472,346,148.22/312,364.49 - Step 6: Final answer
x = 113,560.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.